LaDainian Tomlinson’s NFL career will officially end Monday when he ceremonially rejoins the San Diego Chargers for a day after two seasons with the Jets. The Chargers said Sunday that Tomlinson, who was the league’s most valuable player in 2006 with San Diego and is the NFL’s fifth-leading career rusher with 13,684 yards, would re-sign with the team, then announce his retirement.Tomlinson